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The US climate agency issued a severe geomagnetic storm watch on Tuesday, making the northern lights visible across parts of the Midwest, and possibly even farther south. While such storms can disrupt communication systems, they can also produce dazzling auroras, potentially visible as far south as Alabama and northern California, according to the National Oceanic and Atmospheric Administration (NOAA). NOAA issued a G4 (severe) geomagnetic storm watch in response to recent coronal mass ejections